[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag
From: |
Roland Dreier |
Subject: |
Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag |
Date: |
Fri, 5 Apr 2013 14:03:33 -0700 |
On Fri, Apr 5, 2013 at 1:51 PM, Michael R. Hines
<address@hidden> wrote:
> Sorry, I was wrong. ignore the comments about cgroups. That's still broken.
> (i.e. trying to register RDMA memory while using a cgroup swap limit cause
> the process get killed).
>
> But the GIFT flag patch works (my understanding is that GIFT flag allows the
> adapter to transmit stale memory information, it does not have anything to
> do with cgroups specifically).
The point of the GIFT patch is to avoid triggering copy-on-write so
that memory doesn't blow up during migration. If that doesn't work
then there's no point to the patch.
- R.
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael S. Tsirkin, 2013/04/02
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael R. Hines, 2013/04/05
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Roland Dreier, 2013/04/05
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael R. Hines, 2013/04/05
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag,
Roland Dreier <=
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael R. Hines, 2013/04/05
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael S. Tsirkin, 2013/04/09
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael R. Hines, 2013/04/09
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael S. Tsirkin, 2013/04/10
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael R. Hines, 2013/04/10
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael S. Tsirkin, 2013/04/10
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael R. Hines, 2013/04/10
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael S. Tsirkin, 2013/04/10
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael R. Hines, 2013/04/10
- Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag, Michael S. Tsirkin, 2013/04/09